Analog designers often need matched resistors. One solution is integrated resistor networks, but what if they don't offer the ...

Rheostats Rheostats are simple and ubiquitous circuit elements, usually comprising a potentiometer connected as an adjustable two terminal resistor. The availability of manual pots with resistances ...

Ive made this little rheostat box, simple circuit. 12 volts goes to 3 rheostats in parallel to control 3 fans, but heres where Im confused: when I turn one up, all of the voltage drops slightly ...

It replaces the high-wattage series R cc rheostat of the standard circuit with a series VLED while connecting a high-value, wide-tolerance potentiometer (voltage divider) in parallel with the VLED ...

The circuit on the left contains a lamp, a cell, a switch, and an ammeter. 4 A of current flows. The circuit on the right contains two lamps, a cell, a switch, and an ammeter.